/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.netbeans.modules.hudson.spi;

import java.net.URL;

/**
 * Service for supplying an username and password to authorize a user.
 */
public interface PasswordAuthorizer {

    /**
     * Possibly ask to authorize a user for a Hudson server.
     * This method may open a dialog, consult a foreign authentication service, etc.
     * A standard {@link ConnectionAuthenticator} will log in using a session cookie.
     * @param home the root URL of the Hudson server
     * @return a pair of username and password, or null if no authentication is available
     */
    String[] authorize(URL home);

}
